Koss PRO4AA Over-Ear Stereo Headphones
$114.99
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Koss PRO4AA Over-Ear Stereo Headphones
SKU: PRO4AA
$114.99
Ships in 1–2 business days. Orders typically arrive in 3–8 business days.
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Purchase Orders
School & district POs accepted
Product Support
Help choosing the right audio
Free Quotes
Bulk & institutional pricing
Free shipping on orders of $200+ (contiguous 48 states)That’s about 2 of this item. Ordering for a class? See class packs or request a quote.
Tax-exempt or paying by PO? Request a quote with your exemption certificate and we’ll remove sales tax. Request a quote · How to order with a PO
Minimum Order Quantity: 12 Units
This product is sold with a minimum purchase requirement of twelve (12) units.
This minimum helps us support school, classroom, and institutional buyers while maintaining consistent pricing and availability.
If you need assistance with larger quantities or purchase orders, please contact us and our team will be happy to help.
The Koss Pro4AA Over-Ear Headphones are closed-back, wired headphones designed for clear, controlled audio in educational and institutional settings. With a full over-ear fit and durable construction, they are well suited for classrooms, labs, and environments that require focused listening.
🎧 Key Features
- 🎧 Over-Ear Closed-Back Design – Full ear coverage helps reduce ambient noise.
- 🔊 Stereo Sound – Clear audio suitable for instructional content and focused listening.
- 🛠️ Durable Construction – Built for repeated use in classroom and lab environments.
- 🔌 Wired 3.5mm Connection – Reliable plug-and-play compatibility with most audio devices.
📱 Device Compatibility
Compatible with desktops, laptops, audio interfaces, mixers, and classroom media equipment that support a standard 3.5mm headphone jack. Not USB or wireless.
🧼 Care & Hygiene
For shared use, wipe ear cushions and headband with school-approved disinfectant wipes between users. Allow to fully dry before reuse. Store in a protective case or on hooks when not in use.
📊 Technical Specifications
| Wearing Style | Over-ear |
| Driver Type | Dynamic, closed-back |
| Audio Type | Stereo |
| Connection | Wired (3.5mm) |
| Microphone | No |
🎒 Ideal For
- Classrooms and learning labs
- Focused listening and monitoring tasks
- Educational environments requiring sound isolation
Koss Pro4AA Over-Ear Headphones deliver wired stereo sound with a closed-back, over-ear design for focused classroom and lab listening.
🧾 Procurement & Ordering Notes
Wired over-ear stereo headphones with closed-back design and standard 3.5mm connection. No microphone. Designed for dependable educational use.
School & district orders
Buying for a classroom or school?
Ordering 25 or more? Ask for school pricing. Share your quantity and budget, and we'll send a formal quote, usually within 1 business day.